Devised in early 2025 for Keith Napier and <<ddp:Charlton, Brian#74>> both of whom were 90 that year.

NB the instructions at <<https://mailchi.mp/09f4818f9a14/december-sydney-news-information-bulletin-14764806#Mortdale_-Friends-at-90>> for bars 1-4 suggest couples half turn and cast away to "own" side. Possibly this should be opposite side.